diff --git a/htdocs/langs/en_US/eventorganization.lang b/htdocs/langs/en_US/eventorganization.lang
index 5444ed59e3d..9d7301fc465 100644
--- a/htdocs/langs/en_US/eventorganization.lang
+++ b/htdocs/langs/en_US/eventorganization.lang
@@ -50,6 +50,8 @@ EventOrganizationConfOrBooth= Conference Or Booth
 ManageOrganizeEvent = Manage event organisation
 ConferenceOrBooth = Conference Or Booth
 ConferenceOrBoothTab = Conference Or Booth
+AmountOfSubscriptionPaid = Amount of subscription paid
+DateSubscription = Date of subscription
 
 #
 # Template Mail